Christopher Ward C60 Sapphire Edge White

Christopher Ward expands its dive watch portfolio with the release of the C60 Sapphire Edge White, a reference that utilizes transparent materials to alter the standard visual format of a mechanical tool watch. The core concept of this model revolves around the application of lab-grown sapphire not merely as a protective crystal, but as a structural component for both the dial and the bezel insert. In recent horological manufacturing, engineering teams have increasingly experimented with transparent materials to showcase internal mechanisms, but integrating these materials into a high-depth diver presents unique structural challenges regarding pressure resistance. Measuring 42 millimeters in diameter with a lug-to-lug distance of 49.32 millimeters, the stainless steel case maintains the proportions expected of a modern diver while introducing new visual depth through the translucent dial face. Weighing 70.87 grams without a strap, the watch head is designed to balance securely on the wrist despite the robust 30 ATM water resistance rating. The total weight increases to 178 grams when paired with the full stainless steel bracelet, providing a substantial presence that anchors the timepiece during physical activity. This new white dial variant joins the previously released blue model, offering a higher-contrast aesthetic that emphasizes the mechanical components visible beneath the surface. By exposing the date wheel and base plate, the brand shifts the focus from a traditional opaque dial to the raw mechanical architecture of the Swiss caliber housed inside.

Operating within a highly competitive segment of the dive watch market, this specific reference differentiates itself by prioritizing material transparency and enhanced luminosity. The utilization of sapphire for the dial requires precision machining to achieve a uniform thickness of exactly 0.6 millimeters, a tolerance necessary to ensure the handset clears the dial without increasing the overall height of the watch assembly. Incorporating an exhibition caseback alongside the sapphire dial and bezel insert means ambient light passes through multiple planes of the watch, interacting with the brushed and polished surfaces of the movement and case interior. Manufacturers typically reserve full sapphire cases or extensive transparent elements for high-end watchmaking pieces due to the high failure rate during the machining process of synthetic corundum. Applying this manufacturing technique to a high-volume, 300-meter dive watch demonstrates a shift in how accessible brands are leveraging advanced material fabrication at scale. The resulting aesthetic provides a highly technical look that remains fully functional for underwater applications, maintaining the strict legibility standards required of the C60 line without compromising structural integrity.

The Case and Dial

Constructed from 316L marine-grade stainless steel, the case utilizes the established Light-catcher geometry to reduce the perceived visual mass on the wrist. This multi-piece case design features a series of alternating brushed and polished bevels that run along the flanks and lug chamfers, effectively breaking up the vertical profile of the metal. Achieving a total thickness of just 10.7 millimeters is highly unusual for an automatic dive watch rated to a depth of 300 meters, as the required crystal thickness and caseback gaskets typically push dimensions well past the 12-millimeter mark. The unidirectional countdown bezel is fitted with a sapphire insert rather than the more common ceramic or aluminum alternatives, providing a distinct glossy sheen while offering extreme scratch resistance rated at a nine on the Mohs hardness scale. The bezel mechanism itself is engineered with precise tolerances to provide sharp, tactile clicks with zero backplay, a critical functional requirement for tracking elapsed time or decompression stops without the risk of accidental rotation. Beneath this sapphire overlay, the black bezel track is printed with white numerals and a prominent orange indicator at the twelve o'clock triangle, all of which are fully lumed to ensure visibility in low-light environments. A screw-down crown stamped with the twin-flag motif secures the right flank, guarded by sharply angled crown guards that seamlessly integrate into the mid-case brushing.

Focusing on the front presentation, the dial itself is a thin disc of frosted lab-grown sapphire that partially obscures the underlying Sellita movement while leaving high-contrast components like the date wheel track fully visible. Applied stainless steel indices are secured through the sapphire disc, featuring faceted edges that catch ambient light and deep central channels generously filled with Super-LumiNova Grade X1 GL C1. This specific grade of luminous paint provides a bright, long-lasting green emission that significantly outperforms standard C3 or BGW9 formulations during extended periods of darkness. The handset consists of a broad arrow hour hand and a baton minute hand, both heavily lumed and executed in polished steel to match the hour markers. This differentiation in hand shape ensures instant legibility at a glance, preventing confusion between hours and minutes in turbid water conditions. An orange central seconds hand provides a sharp visual contrast against the monochromatic white and steel backdrop, complete with a luminous tip and the signature Trident counter-balance on the opposing end. At the six o'clock position, a framed date window displays the current day, pulling data from the exposed wheel that traverses the perimeter of the movement beneath the sapphire layer. Encircling the transparent center is an opaque white chapter ring that houses the black minute hashes, anchoring the floating indices and providing a clean transition between the sapphire dial and the inner case wall.

The Movement

Driving the timekeeping functions of the C60 Sapphire Edge White is the Sellita SW300-1 automatic caliber, a crucial component in achieving the watch's exceptionally thin 10.7-millimeter profile. Measuring 25.6 millimeters in diameter but only 3.6 millimeters in height, this caliber is a full millimeter thinner than the ubiquitous SW200-1 typically utilized in watches within this tier. This reduction in movement height directly translates to the reduced case thickness, allowing the watch to slip easily under a shirt cuff while retaining professional-grade water resistance. The 25-jewel mechanism operates at a frequency of 28,800 vibrations per hour, or four hertz, resulting in a smooth sweep of the orange Trident seconds hand across the translucent dial. Incorporating a central hacking seconds function, the movement allows the wearer to stop the balance wheel entirely when setting the time, ensuring precise synchronization with an atomic clock or other reference time source. An integrated anti-shock system protects the balance staff from sudden impacts, a necessary feature for a tool watch intended for active physical use in demanding environments.

Beyond its compact dimensions, the SW300-1 provides a substantial upgrade in autonomy with a power reserve extending to 56 hours on a full mainspring wind. This extended reserve represents a significant practical improvement over the standard 38-hour capacity found in older generation movements, allowing the watch to be removed on a Friday evening and picked up on Monday morning without requiring a manual reset. The mainspring barrel and gear train have been optimized by Sellita to achieve this greater efficiency without sacrificing the torque necessary to drive the heavily lumed handset. The Sellita SW300-1 is widely regarded as a premium alternative within the Swiss movement manufacturing market, offering tighter factory tolerances and a more refined architecture than base-level calibers. Visible through the sapphire exhibition caseback, the movement is heavily decorated with a custom rotor featuring a snailed finish and the brand logo engraving. The base plate and bridges, which can be seen from both the front and rear of the watch, are finished with traditional circular graining that adds mechanical texture to the visual presentation. The stated timing tolerance for this caliber is regulated to run within a variance of plus or minus twenty seconds per day, ensuring reliable performance for daily wear.

The Strap Options

Buyers have the option of outfitting the watch with either a marine-grade stainless steel Bader bracelet or a highly specialized Aquaflex rubber strap. The Bader bracelet features a tapered profile, single screw links for easy sizing, and a micro-adjustable ratchet clasp that allows for tool-free sizing adjustments throughout the day. A quick-release system is integrated into the solid end links, enabling the wearer to swap between the steel bracelet and the rubber strap without the use of spring bar tools, reducing the risk of scratching the polished lug surfaces.

Alternatively, the Aquaflex strap is constructed from FKM fluorocarbon rubber, a high-density synthetic compound that is vastly superior to standard silicone in terms of resistance to ultraviolet light, high heat, and chemical exposure. FKM rubber was originally developed for aerospace and automotive applications where material failure is not an option, making it an ideal candidate for professional diving equipment. This specific variant features an innovative dual-tone construction with an orange interior and a white exterior, injected with a luminous coating that delivers a neon green glow across the entire strap in dark conditions. The flexibility of the FKM rubber ensures immediate comfort on the wrist, while the structured lug integration eliminates any gap between the strap and the curved case.

Pricing and Availability

The C60 Sapphire Edge White is positioned within the mid-tier luxury segment, structured to offer significant mechanical and material specifications at an accessible price point. When purchased on the stainless steel Bader bracelet, the retail price is set at $1,555.00, providing the most versatile and durable configuration for daily wear. Opting for the luminous Aquaflex rubber strap brings the retail price down to $1,420.00, catering to buyers who prefer a lighter, more sport-focused setup.

Both configurations are currently available for direct purchase through the official brand channels. Consistent with the company's broader corporate initiatives, two percent of the proceeds from every watch sold are directed to the '2 for GOOD' campaign. This charitable program donates the collected funds directly to established environmental and social charity partners.

Technical Specifications

Case: 42mm 316L Stainless Steel, 10.7mm thick, 49.32mm lug-to-lug, 30 ATM (300m) water resistance.

Movement: Sellita SW300-1 Automatic, 25 jewels, 28,800 vph (4Hz), 56-hour power reserve.

Dial: White 0.6mm lab-grown sapphire crystal with applied indices.

Strap: Bader stainless steel bracelet or white/orange Aquaflex FKM rubber strap.

Price: $1,555.00 (bracelet) / $1,420.00 (strap)

Reference Number: C60-42ADA31S0KW3-B0

Notes: Features Super-LumiNova Grade X1 GL C1, sapphire bezel insert, central hacking seconds, and exhibition caseback.